Ruling · Śiva Śayanotsava · 1995

Tuesday 11 July

Boundaryin Baoding, under the Rashtriya Panchang method. Pūrṇimā reaches pradoṣa on neither day and the rule does not say what then. Say “contested”.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Tuesday 11 July

Taken. Pūrṇimā reaches neither evening; this is the day it falls on.

19:45 sunsetpradoṣa ends 20:59
19:2119:4520:0920:3320:5721:2121:45

0 of 74 minutes covered

Evening of Wednesday 12 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:44 sunsetpradoṣa ends 20:59
19:2019:4420:0820:3220:5621:2021:44

0 of 75 minutes covered

Pūrṇimā presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 22:32 on Tue 11 Jul to 18:49 on Wed 12 Jul.

    1995-07-11T14:32:19Z → 1995-07-12T10:49:18Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:45–20:59 on the 11th, 19:44–20:59 on the 12th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 0 of 74 minutes on the 11th and 0 of 75 on the 12th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither evening qualifies. The day the tithi falls on is taken.

    priority: unstated → tithi-day · margin 3300 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1995: Tuesday 11 July.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Śiva Śayanotsava 1995 falls on Tuesday 11 July. Pūrṇimā runs from 22:32 on Tue 11 Jul to 18:49 on Wed 12 Jul, and reaches pradoṣa on neither day.

ahargana.org/baoding/festivals/1995/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 11 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 11 Jul
compat-drikpanchangComparison profileTue 11 Jul
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/shiva-shayanotsava · ruleset 2026.3-draft

Month
Āṣāḍha, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 102

“S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāSunset 11thCoveredSunset 12thCoveredRuled
Los Angeles07:32 → 03:4920:0678 min20:060 min11 Jul
Chicago09:32 → 05:4920:2672 min20:260 min11 Jul
Jersey City10:32 → 06:4920:2873 min20:280 min11 Jul
Port of Spain10:32 → 06:4918:3390 min18:330 min11 Jul
London15:32 → 11:4921:1562 min21:140 min11 Jul
Durban16:32 → 12:4917:11109 min17:120 min11 Jul
Dubai18:32 → 14:4919:1283 min19:120 min11 Jul
Delhi20:02 → 16:1919:2241 min19:220 min11 Jul
Kolkata20:02 → 16:1918:250 min18:240 min11 Jul
Singapore22:32 → 18:4919:150 min19:160 min11 Jul
Sydney00:32 → 20:4917:010 min17:02112 min12 Jul
Suva02:32 → 22:4917:450 min17:45103 min12 Jul
Profile · tradition
pac-rp@2026.1 · smarta
Rule
shiva-shayanotsava@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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